For archives (.zip, .rar, etc), you must decompress the files. The archive will normally include the correct paths for all files, but generally all files taking the form 44xxxx.xml belong in the "t" folder and all the other .xml files belong in the "scripts" folder.

For packaged files (.spk), you must install the script using the Plugin Manager. This can be found in the scripts forum, along with instructions on how to use it.

Note: It is always a good idea to read any documentation included with the script.